class_docstr: Monitor and autorestart a kernel.
code: def _callbacks_default(self):
      return dict(restart=[], dead=[])
  
file_path: catboost/contrib/python/jupyter-client/py2/jupyter_client/restarter.py
imports: from traitlets.config.configurable import LoggingConfigurable
  from traitlets import Instance, Float, Dict, Bool, Integer
label_desc: Use image node_id 1 for calling the KernelRestarter obj's underlying member method code with example usage: obj._callbacks_default() and returns: dict